Pulley-block for hay-slings



(No Medel.)

L. L. HOLSER.

PULLBY BLOCK POR HAY SLINGS.

No. 566,759. Patented Sept. l, 1896.

Qdi...

in lf" l'w @l I,

- "wir Hm llillllml.. `will t l WIM/Essa? 1w VEJVIff/ LEVI L. I'IOLSER,OF ASHLAKD, OHIO.

PULLEY-BLOCK FOR HAY-SLINGS.

SPECIFICATION forming part of Letters Patent No. 566,759, datedSeptember 1, 1896.

Application filed December 2, 1895. Serial No. 570,803. (No model.)

To @ZZ whom it may concern.-

Be it known that I, LEVI L. HoLsER, a citizen of the United States, anda resident of Ashland, county of Ashland, State of Ohio, have invented anew and useful Improvement in Pulley-Blocks for Hay-Slings, of which thefollowing is a full, clear, and exact descrip tion, reference being hadto the accompanying drawings, making part of this specificaion.

My invention relates to an improvement in pulley-blocks forhay-slings orother elevating devices; and it consists of certain features ofconstruction and combination of parts, as will be hereinafter describedand claimed.

Figure l of the drawings is a side elevation showing the parts as seenwhen ascending with a load. Fig. 2 is a transverse section of thehoist-block and brake. Fig. 3 is a perspective of the register-head,guiding-arm, supporting-clevis, and brakeshoe; and Fig. 4- is a similarview of the brake-shoe.

A denotes the track,and B the carrier, which may be of any of theWellhnown and approved forms.

C denotes a singlesheave pulley-block, the operation of which will behereinafter eX- plained.

D denotes the hoist-block and brake. Preferably the block is constructedas shown in Fig. 2, having heavy hard-Wood sides, as a, supported on ametal clevis Z2, at the closed end of which is provided the usualswiveled hook c. There is also provided at the closed end portion asleeve CZ, that serves as a support for the sides of the clevis, throughWhich is passed a through bolt or pin e. At'the upper end of the prongsof the clevis is provided aperture j", that receives the through-bolt h,on which is placed the sleeve j, that serves as a j ournalsupport forthe sheave-Wheel 7c.

E denotes asuspension brake clevis having prongs Z, that embrace thesheave 7o in the block D. At the upper end of the sides or prongs isprovided a register-head m and a guide n., adapted to embrace thehoisting-rope F to guide the head m into the carrier B. In the sides ofthe clevis-prongs elongated apertures o are provided, in which the bolth is placed, as shown in Fig 2, which serves as a support for thesheavemheel and block and to form a sliding engagement between the blockand the clevis E. At the lower end of the clevis E is pivotally securedthe brakeshoe G, as shown by the dotted lines in Fig. l. The shoe isformed substantially as shown in Fig. e, the upper face adapted to graspthe rope in the sheave 7c and hold it against reverse rotation. At apoint just belouT the arm n the olevis E is bent obliquely from a linedrawn vertically through the registerhead to the pulley-block D, asshown in Fig. 1, the object of which is to hold the register in avertical position to enter the carrier.

The hoist-rope F is secured to the leftliand side of the carrier andpasses down about the sheave in block C, through the block D, about thesheave k, up through the circular opening p in arm n, and around thesheave at the left-hand side of the carriage and out in the directionindicated by the arrow. For the purpose of this case I have shown myinvention in connection with a hay-slin g II, but it may be otherwiseused.

In operation the sling is placed in the load in the usual Way. Theblocks O and D are drawn down and apart and hooked into the ringsprovided at the end of the sling. team is then started to draw the ropein the direction indicated by the arrow, by which movement the blocksare drawn together, as shown in Fig. l, the sling about the load, theregister-head held in line with the entrance to the carrier, in which itmay be secured by any of the Well-known and approved clasps, at whichinstant the carrier will be started on the track, the slack of the ropeallowing the block D to drop and carry the rope down onto the brake-shoeG. The weight of the load resting on the rope F in the shoe G will lockthe rope against reverse movement, and thereby hold it suspended on theclevis and locked to the rope Whiie it is being transferred to a placeof deposit.

I-Iaving thus fully described the nature and object of my invention,what I claim, and desire to secure by Letters Patent, is-

l. The combination with a carrier and track of the hoisting-rope F,pulleybloclrl), clevis E, having at its upper end portion aregister-head m, and in the prongs thereof, slots o, and at its lowerend a brake-shoe G, whereby the rope may be grasped between The IOO

the sheave 7c and the shoe G, and the sheave held against reversemovement by the Weight of the load, and the load held at apreviouslydetermined height by the rope and the elevis,

5 Substantially as described and for the purpose set forth.

2. The combination with a track and Carrier, a hoisting block and rope,of a supporting-clevis, having at its lower end portion,

1o and pivotally secured thereto, a brake-shoe,

and in the sides thereof, elongated apertures, whereby the block maydrop to grasp and look the block, and its load, to the rope,substantially as set forth.

In testimony whereof I have hereunto set 15 my hand this 9th day ofNovember, A. D. 1895.

vLEVI L. HOLSER. /Vitnesses:

lW. T. DEvoR, A. F. MUMAU.

